Hey bro. I thnk you should totally let them go a little while longer before 12/12 switch. Maybe another 2 weeks (depending on growth speed).
What are the new cfls wattage wise? Just the two more?
Temps can get low. I forgot who said it, but someone who really grows great plants said they let their room get down to 55 at night and 65 during the day, and their plants loved it. I'm not recomending getting down to 55, but they plants will work it out for sure, and if it gets cool enough you might end up with some purple buds.
What goes on down there.... you got a table next to the water heater where you sit, eat chips, and watch the plants grow?
One sugesstion, you may want to set it all up against one wall, as the light would reflect off it... or even in a corner so you get a litte more light containment. All the light that lights the room down there is being wasted not getting at the plants. I like the new location, just might want to keep some of that light.
Picturing you trying to carry the tub, water, and plants is a funny thought. The only reason not to drain the water is to not waste nutrients. The plants like fresh water, and they love air... so next time drain it and give them a bath water to go with the new location (not like you are moving them each week, haha).
When you do change the water it is nice to let the roots air out a little, not hours, but maybe 30 minutes or so. I've left mine in complete dry for maybe 2 hours (oops) and they were fine.
Not something you want to do, but if for some reason the airpump fails and doesn't work for a week or two, the plants will still live. Like I said, not a good idea, but if the worst happens, the worst wouldn't happen (hows that for not making sense). That's what scares me about aero... if the power fails the roots wouldn't like no water for days, but no air for days they can do.
They are pretty little plants.
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